molecular

adjective

mo·​lec·​u·​lar mə-ˈle-kyə-lər How to pronounce molecular (audio)
1
: of, relating to, consisting of, or produced by molecules
molecular oxygen
2
: of or relating to individual or small components
a molecular view of the American Civil War
molecularly adverb

Examples of molecular in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As medicine shifts toward prevention, the ability to detect disease at a molecular level—before symptoms appear—has become a high-stakes priority. Somnath Banerjee, Forbes.com, 11 Sep. 2025 This new perspective provides fresh insight into the molecular triggers of neurodegeneration. Aamir Khollam, Interesting Engineering, 11 Sep. 2025 The study conducted molecular tests of the ghost sharks' tenaculum protusions and the tissue around them to help determine what the spikes were. Staff Author, PEOPLE, 10 Sep. 2025 And with that, came opportunity for companies like HealthTrackRx, a leading molecular testing laboratory that tests for infectious diseases and will perform testing on-site at UPS Labport — cutting down shipping times and company costs. Olivia Evans, Louisville Courier Journal, 10 Sep. 2025 See All Example Sentences for molecular

Word History

First Known Use

1770, in the meaning defined at sense 1

Time Traveler
The first known use of molecular was in 1770

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Cite this Entry

“Molecular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molecular. Accessed 15 Sep. 2025.

Kids Definition

molecular

adjective
mo·​lec·​u·​lar mə-ˈlek-yə-lər How to pronounce molecular (audio)
: of, relating to, or produced by molecules

Medical Definition

molecular

adjective
mo·​lec·​u·​lar mə-ˈlek-yə-lər How to pronounce molecular (audio)
1
: of, relating to, consisting of, or produced by molecules
molecular oxygen
2
: relating to or emphasizing individual responses or structures of behavior
proceed by more and more detailed analysis to the molecular facts of perceptionG. A. Miller
compare molar entry 3 sense 2
molecularity noun
plural molecularities
molecularly adverb

More from Merriam-Webster on molecular

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